0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2018-05-23 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Southern Hemisphere winter sea ice concentration simulated by HadCM3 to best explain the early last interglacial Antarctic isotope peak 2018-05-23 creation 2018-05-23 revision 2018-05-23 publication 2018-05-23 released None https://doi.org/10.5285/0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d doi GB/NERC/BAS/PDC/01084 https://data.bas.ac.uk/ NE/P009271/1 award NE/P013279/1 award NE/K004514/1 award Please cite this item as: Holloway, M. (2018). Southern Hemisphere winter sea ice concentration simulated by HadCM3 to best explain the early last interglacial Antarctic isotope peak (Version None) [Data set]. Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, UK. https://doi.org/10.5285/0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d The file contains Southern Hemisphere winter (September) sea ice concentration (sic) from a simulation performed using the isotope-enabled HadCM3 climate model forced with early last interglacial boundary conditions, centred approximately 128,000 years ago. The resulting sic represents a reduction in winter sea ice area of approximately 54% relative to pre-industrial and is proposed as the best explanation for the Antarctic ice core data from 128,000 years ago. The spatial pattern of sea ice retreat was determined using a large ensemble of model experiments and a pattern search optimization approach to match the last interglacial ice core isotope peak. Further details can be found in the published manuscript (https://doi.org/10.1002/2017GL074594). This work was funded by NERC grants NE/P009271/1, NE/P013279/1, and NE/K004514/1. No credit. completed Sime, Louise British Antarctic Survey Researcher author Holloway, Max British Antarctic Survey Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes EARTH SCIENCE > Paleoclimate > Paleoclimate Reconstructions theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Antarctic Ice core Isotope Last interglacial Southern Hemisphere sea ice theme Southern Ocean Antarctica place Oceanographic geographical features Geology theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v3 otherRestrictions No restrictions apply to this dataset. Access to the Met Office Unified Model source code is available under license from the Met Office at http://www.metoffice.gov.uk/ research/collaboration/um-collaboration. The climate model data are available on request from http://www.bridge.bris.ac.uk/resources/simulations. url url crossReference textTable eng utf8 climatologyMeteorologyAtmosphere environment -180.0 180.0 -80.5 -52.5 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor bytes 1 https://ramadda.data.bas.ac.uk/repository/entry/show/?entryid=0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: This is output from a simulation using the isotope-enabled HadCM3 climate model forced with early last interglacial boundary conditions (orbital configuration and greenhouse-gas concentrations), centred approximately 128,000 years ago. Sea ice concentration has been re-gridded from the native global model grid to a higher resolution latitude-longitude grid covering the latitude range from 52.5 to 80.5 deg S. Further details can be found in the published manuscript (https://doi.org/10.1002/2017GL074594). Data quality: Masked NaN values represent grid points that are land. The grid is 1445x113 in longitude, latitude. asNeeded completed